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Calcium, NY Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Calcium, a community in Jefferson County, New York.

Overnight
41°F
Patchy Fog
Patchy fog after 3am. Partly cloudy, with a low around 41. Northeast wind around 5 mph.

7-day forecast for Calcium

WhenTempForecastWindPrecip
Overnight 41°F Patchy Fog 5 mph NE 0%
Saturday 64°F Patchy Fog then Mostly Sunny 5 mph NE 0%
Saturday Night 46°F Mostly Cloudy then Chance Rain Showers 3 mph E 48%
Sunday 62°F Rain Showers Likely 3 to 8 mph E 73%
Sunday Night 44°F Chance Rain Showers then Partly Cloudy 3 to 8 mph NE 28%
Monday 60°F Mostly Sunny 8 to 12 mph NE 0%
Monday Night 42°F Mostly Cloudy 6 to 10 mph NE 1%
Tuesday 63°F Partly Sunny 7 to 10 mph NE 2%
Tuesday Night 42°F Partly Cloudy 3 to 10 mph NE 4%
Wednesday 64°F Mostly Sunny 7 mph E 9%
Wednesday Night 45°F Mostly Cloudy then Slight Chance Rain Showers 6 mph E 24%
Thursday 63°F Slight Chance Rain Showers 5 to 8 mph E 24%
Thursday Night 47°F Slight Chance Rain Showers 3 to 8 mph NE 24%
Friday 67°F Slight Chance Rain Showers then Partly Sunny 3 to 8 mph NE 19%

Forecast source: National Weather Service (api.weather.gov) for Calcium (44.041, -75.849). Updated through the day.

Growing snapshot for Calcium

Last spring frost
May 2
First fall frost
Oct 13
Growing season
163 days
Hardiness zone
5a

More local growing data for Calcium: nearby ZIP 13616 weather · frost dates · planting calendar · New York frost dates

Nearby towns & communities

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Climate data from the nearest NOAA station, Watertown, Ny (3.8 mi from Calcium). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.